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Loans - Credit impaired loans (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
--- | --- | --- | ---
Summary of Loans |  |  |
Total loans |  | $ 11,375,104 | $ 11,290,147
Less allowance for credit losses | $ (440,159) | (56,927) | (54,937)
Loans, net | $ 24,797,656 | 11,313,113 | 11,229,892
Construction and land development |  |  |
Summary of Loans |  |  |
Total loans |  | 1,017,261 | 1,025,387
Commercial loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans |  | 1,386,327 | 1,261,527
Consumer | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  | 663,422 | 654,883
Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 361,846 | 396,032
Less allowance for credit losses |  | (5,064) | (5,318)
Loans, net |  | 356,782 | 390,714
Acquired credit impaired loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans |  |  | 26,930
Acquired credit impaired loans | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  |  | 36,812
Acquired credit impaired loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans |  |  | 8,112
Acquired credit impaired loans | Commercial loans | Real estate |  |  |
Summary of Loans |  |  |
Total loans |  | 130,938 | 149,134
Acquired credit impaired loans | Commercial loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans |  | 25,032 | 26,930
Acquired credit impaired loans | Commercial loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans |  | 7,029 | 8,112
Acquired credit impaired loans | Consumer | Real estate |  |  |
Summary of Loans |  |  |
Total loans |  | 163,359 | 175,044
Acquired credit impaired loans | Consumer | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  | $ 35,488 | $ 36,812

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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
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